首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   16832篇
  免费   783篇
  国内免费   137篇
耳鼻咽喉   175篇
儿科学   359篇
妇产科学   128篇
基础医学   2103篇
口腔科学   311篇
临床医学   1048篇
内科学   4529篇
皮肤病学   458篇
神经病学   1376篇
特种医学   536篇
外科学   2743篇
综合类   42篇
一般理论   4篇
预防医学   347篇
眼科学   622篇
药学   1136篇
中国医学   27篇
肿瘤学   1808篇
  2023年   94篇
  2022年   85篇
  2021年   391篇
  2020年   216篇
  2019年   272篇
  2018年   349篇
  2017年   275篇
  2016年   369篇
  2015年   419篇
  2014年   508篇
  2013年   616篇
  2012年   1101篇
  2011年   1174篇
  2010年   692篇
  2009年   587篇
  2008年   1020篇
  2007年   1164篇
  2006年   1081篇
  2005年   1231篇
  2004年   1216篇
  2003年   1069篇
  2002年   1113篇
  2001年   202篇
  2000年   152篇
  1999年   220篇
  1998年   253篇
  1997年   190篇
  1996年   181篇
  1995年   187篇
  1994年   159篇
  1993年   170篇
  1992年   102篇
  1991年   94篇
  1990年   99篇
  1989年   86篇
  1988年   63篇
  1987年   47篇
  1986年   47篇
  1985年   45篇
  1984年   45篇
  1983年   34篇
  1982年   42篇
  1981年   40篇
  1980年   31篇
  1979年   30篇
  1978年   39篇
  1977年   26篇
  1976年   13篇
  1975年   12篇
  1974年   12篇
排序方式: 共有10000条查询结果,搜索用时 171 毫秒
1.
We report a case of a diaphragmatic hernia after a heart transplant operation. A 43-year-old woman, who underwent orthotropic heart transplantation for hypertrophic cadiomyopathy two year earlier, presented with vomiting and epigastric pain. A computed tomography scan showed that the stomach and transverse colon were dislocated in the left thoracic cavity. We diagnosed left diaphragmatic hernia incarceration and performed laparoscopic repair of the diaphragmatic hernia. A 12 × 8 cm diaphragmatic defect was found intraoperatively on the ventrolateral aspect of the left diaphragm, and the stomach with volvulus had herniated into the thorax through the defect. The hernia was considered to be iatrogenic. The diaphragmatic defect was large, and the diaphragm was thinning. We closed the defect by mesh repair. Laparoscopic mesh repair of the diaphragmatic hernia could be performed safely and with minimal invasiveness.  相似文献   
2.
BackgroundLocomotive syndrome is a condition of reduced mobility due to problems with locomotive organs. Although lumbar spinal canal stenosis is one of the major diseases constituting locomotive syndrome, only few studies have focused on the association between the two pathologies. We aimed to investigate the effect of surgery on lumbar spinal canal stenosis with respect to locomotive syndrome using various physical function tests, including locomotive syndrome risk tests, before and after surgery.MethodsClinical data of 101 consecutive patients (male = 46; female = 55; mean age, 69.3 years) who underwent surgery for lumbar spinal canal stenosis at our institute were prospectively collected. Results of physical function tests, including stand-up test, two-step test, and 25-Question Geriatric Locomotive Function Scale, and the sagittal vertical axis were evaluated before and 1 year after surgery. The association between several parameters and improvement of risk level in locomotive syndrome was evaluated.ResultsIn the total assessment, 93.1% of cases were in stage 2 and 6.9% in stage 1 preoperatively, while 72.4% were in stage 2, 22.4% in stage 1, and 5.2% in stage 0 at 1 year postoperatively. Postoperative improvement in the total assessment was observed in 28.7% of cases. Several physical function tests and sagittal vertical axis showed significant improvement after surgery. On multiple logistic regression analysis, age >75 years (odds ratio = 10.9, confidence interval = 1.09–109) and postoperative sagittal vertical axis >40 mm (odds ratio = 17.8, confidence interval = 1.78–177) were significant risk factors associated with non-improvement in risk level of locomotive syndrome.ConclusionsSurgical treatment for lumbar spinal canal stenosis improved physical function, including locomotive syndrome. Risk factors associated with non-improvement of locomotive syndrome were later-stage elderly and postoperative sagittal balance impairment.  相似文献   
3.
4.
Although allogeneic hematopoietic stem cell transplantation (HSCT) has been reported to provide prolonged remission of relapsed/refractory mycosis fungoides (MF) and Sézary syndrome (SS), its role has not been fully evaluated. Here, the outcomes of allogeneic HSCT for patients with MF/SS were retrospectively evaluated by using the registry database of the Japan Society for Hematopoietic Cell Transplantation. Forty-eight patients were evaluable and enrolled in the analysis. Median age was 45.5 years. Eighteen patients (38%) received myeloablative conditioning, and 33 (69%) received HSCT from an alternative donor. Disease status was complete or partial response in 25% of the patients and relapsed or refractory in the others. At the time of analysis, 18 patients were alive, with a median follow-up of 31.0 months (range, 3.8-31.1). Three-year overall survival (OS) and progression-free survival (PFS) were 30% (95%CI, 16-45%) and 19% (95%CI, 9-31%), respectively. Disease progression was not observed later than 17 months after transplantation. Both disease status and performance status at transplant significantly affected OS and PFS. Although our findings suggest that allogeneic HSCT provides long-term PFS in patients with MF/SS, the timing of transplantation should be decided carefully based on the disease status and the patient's condition in order to improve the outcome.  相似文献   
5.
6.
7.
8.
9.
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号